V20H35P

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The V20H35P series belongs to the family of Transient Voltage Surge Suppressors (TVSSs). TVSSs are temporarily connected devices used to limit AC voltage and current transients, as well as other short duration, high energy surges. In some cases they are also used to protect the power supply against lightning-induced surges.

The V20H35P series of TVSSs are varistor-type products. Varistors are voltage limiting devices that reduce the voltage of an input signal by using a semiconductor device as an electrically controlled resistor. When the voltage across the varistor increases to a certain level, the varistor begins to act like a metal oxide varistor (MOV) or voltage regulator. In other words, it will begin to limit the amount of current that the device can experience, which in turn reduces the chance of permanent damage to the device. In the case of the V20H35P series, the varistors have a peak pulse current of 20A.

When working with varistor-type TVSSs, it is important to understand the working principles behind them. The V20H35P series consists of two types of varistors, known as Zinc Oxide Varistors (ZOVs) and Non-Zinc Oxide Varistors (NZOVs). Each type of varistor behaves differently when exposed to certain voltage levels. The V20H35P series is specifically designed to protect against AC power line transients. The working principle is fairly simple. When an AC voltage transient reaches the device, the varistor acts as a surge protector by diverting the excessive voltage away from the device. This basic principle applies equally to both ZOVs and NZOVs.

In addition to the protective functions, V20H35P series varistors also serve an important role in regulating the power supply. The presence of varistors in the power supply provides a level of frequency stability and protection against voltage fluctuations. When the power supply is subject to excessive input voltage, the varistor acts as a limiter, clipping the input voltage at a certain level and preventing damage to the device.

In addition to their use in the power supply stage, V20H35P series varistors can be used in other applications such as communications, building automation, and other power conditioning products. The V20H35P series is available in a variety of shapes and sizes, allowing it to be used in both large and small applications. For example, the V20H35P series can be used in products with high current applications, such as computer motherboards and power supplies.

In summary, the V20H35P series of TVSS are designed to protect devices from high voltage transients, regulating the power supply against voltage fluctuations, and providing frequency stability. The V20H35P series is a varistor-type product, consisting of ZOVs and NZOVs, and is available in a variety of sizes and shapes.

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